<template>
  <div style="text-align: center; width: 100%">
    <el-empty description=" ">
      <h2 data-text="404">404</h2>
      <h4>啊呀~页面不存在!</h4>
      <p>您可以先检查网址，然后重新输入或给我们反馈问题。</p>
      <el-button type="primary" plain round @click="gohome">返回首页</el-button>
      <el-button type="primary" round @click="goback">返回上一页</el-button>
    </el-empty>
  </div>
</template>

<script>
export default {
  methods: {
    gohome() {
      location.href = "#/";
    },
    goback() {
      this.$router.go(-1);
    },
  },
};
</script>

<style scoped>
h4 {
  font-size: 20px;
  color: #333;
}
p {
  font-size: 12px;
  color: #999;
  margin: 20px 0;
}
h2 {
  font-size: 70px;
  position: relative;
  letter-spacing: 1px;
  z-index: 3;
}
h2:after {
  content: attr(data-text);
  position: absolute;
  left: 2px;
  text-shadow: -1px 0 red;
  top: 0;
  color: #000;
  background: #f6f8f9;
  overflow: hidden;
  clip: rect(0, 900px, 0, 0);
  width: 100%;
  animation: noise-anim 2s infinite linear alternate-reverse;
}
h2:before {
  content: attr(data-text);
  position: absolute;
  left: -2px;
  text-shadow: 1px 0 blue;
  top: 0;
  color: #000;
  background: #f6f8f9;
  overflow: hidden;
  clip: rect(0, 900px, 0, 0);
  width: 100%;
  animation: noise-anim-2 3s infinite linear alternate-reverse;
}
@keyframes noise-anim {
  0% {
    clip: rect(77px, 9999px, 51px, 0);
  }
  5% {
    clip: rect(25px, 9999px, 30px, 0);
  }
  10% {
    clip: rect(70px, 9999px, 75px, 0);
  }
  15% {
    clip: rect(94px, 9999px, 96px, 0);
  }
  20% {
    clip: rect(24px, 9999px, 11px, 0);
  }
  25% {
    clip: rect(12px, 9999px, 53px, 0);
  }
  30% {
    clip: rect(79px, 9999px, 54px, 0);
  }
  35% {
    clip: rect(70px, 9999px, 93px, 0);
  }
  40% {
    clip: rect(73px, 9999px, 86px, 0);
  }
  45% {
    clip: rect(100px, 9999px, 96px, 0);
  }
  50% {
    clip: rect(5px, 9999px, 68px, 0);
  }
  55% {
    clip: rect(6px, 9999px, 16px, 0);
  }
  60% {
    clip: rect(4px, 9999px, 60px, 0);
  }
  65% {
    clip: rect(86px, 9999px, 74px, 0);
  }
  70% {
    clip: rect(6px, 9999px, 53px, 0);
  }
  75% {
    clip: rect(41px, 9999px, 35px, 0);
  }
  80% {
    clip: rect(70px, 9999px, 60px, 0);
  }
  85% {
    clip: rect(52px, 9999px, 66px, 0);
  }
  90% {
    clip: rect(18px, 9999px, 16px, 0);
  }
  95% {
    clip: rect(71px, 9999px, 80px, 0);
  }
  100% {
    clip: rect(69px, 9999px, 51px, 0);
  }
}
@keyframes noise-anim-2 {
  0% {
    clip: rect(20px, 9999px, 7px, 0);
  }
  5% {
    clip: rect(51px, 9999px, 73px, 0);
  }
  10% {
    clip: rect(33px, 9999px, 21px, 0);
  }
  15% {
    clip: rect(60px, 9999px, 48px, 0);
  }
  20% {
    clip: rect(86px, 9999px, 48px, 0);
  }
  25% {
    clip: rect(32px, 9999px, 50px, 0);
  }
  30% {
    clip: rect(59px, 9999px, 50px, 0);
  }
  35% {
    clip: rect(80px, 9999px, 96px, 0);
  }
  40% {
    clip: rect(7px, 9999px, 39px, 0);
  }
  45% {
    clip: rect(62px, 9999px, 90px, 0);
  }
  50% {
    clip: rect(85px, 9999px, 84px, 0);
  }
  55% {
    clip: rect(89px, 9999px, 51px, 0);
  }
  60% {
    clip: rect(88px, 9999px, 50px, 0);
  }
  65% {
    clip: rect(8px, 9999px, 82px, 0);
  }
  70% {
    clip: rect(80px, 9999px, 23px, 0);
  }
  75% {
    clip: rect(22px, 9999px, 52px, 0);
  }
  80% {
    clip: rect(96px, 9999px, 44px, 0);
  }
  85% {
    clip: rect(84px, 9999px, 27px, 0);
  }
  90% {
    clip: rect(32px, 9999px, 71px, 0);
  }
  95% {
    clip: rect(85px, 9999px, 35px, 0);
  }
  100% {
    clip: rect(24px, 9999px, 23px, 0);
  }
}
</style>
